Since they produced inferior quality steel, this is a failure. Therefore, this means that the Chinese government failed to invest in industrialization.
P.S. Having been to China a few months ago, they don't have backyard furnaces anymore :)
For 391 years, going from 794 to 1185, the real power in Japan was in the hands of the Fujiwara family (A option), they achieved that by monopolizing regent positions. The seize of power by abdicated emperors at the 11th century followed by the rise of the Samurais led to Fujiwara's gradual decline.
When the light bulb industry becomes a competitive market, the price of the light bulb will decrease. This is due to the fact that the industry will no longer monopolize the production of light bulb, other competitors will bring their product to the market. Thus, this will result to competition which will bring the prices lower since consumers will opt to buy lower prices of the same product.